Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model
Considering the interaction among anchor cable, frame beam and rock mass, a new model of prestress loss of anchor cable was established. The accuracy and applicability of the new model were verified by comparing the field monitoring data and the calculation results of existing models. In addition, b...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Mathematics |
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| Online Access: | https://www.mdpi.com/2227-7390/9/10/1094 |
| _version_ | 1827692723138723840 |
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| author | Keyou Shi Xiaoping Wu Yurong Tian Xiaotian Xie |
| author_facet | Keyou Shi Xiaoping Wu Yurong Tian Xiaotian Xie |
| author_sort | Keyou Shi |
| collection | DOAJ |
| description | Considering the interaction among anchor cable, frame beam and rock mass, a new model of prestress loss of anchor cable was established. The accuracy and applicability of the new model were verified by comparing the field monitoring data and the calculation results of existing models. In addition, based on the new model, the effect of the re-tension of the anchor cable at different time nodes was analyzed, and the later compensation time of anchor cable prestress was discussed. The research shows that: the accuracy of the new model is higher after considering the effect of the frame beam, the new model can not only calculate the loss of prestress of anchor cable, but also accurately predict the time when the prestress of anchor cable reaches the stable stage. The ideal effect of prestress compensation can be achieved when the anchor cable is re-tensioned at each time point after 20 days of the construction completed. The original prestress loss of the anchor cable is different, and the re-tension effect is also different, the greater the loss of the original prestress of the anchor cable, the more obvious the prestress compensation effect during the re-tension. |
| first_indexed | 2024-03-10T11:28:59Z |
| format | Article |
| id | doaj.art-a132af562060401cb59843b8fbb94686 |
| institution | Directory Open Access Journal |
| issn | 2227-7390 |
| language | English |
| last_indexed | 2024-03-10T11:28:59Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Mathematics |
| spelling | doaj.art-a132af562060401cb59843b8fbb946862023-11-21T19:26:04ZengMDPI AGMathematics2227-73902021-05-01910109410.3390/math9101094Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss ModelKeyou Shi0Xiaoping Wu1Yurong Tian2Xiaotian Xie3School of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaConsidering the interaction among anchor cable, frame beam and rock mass, a new model of prestress loss of anchor cable was established. The accuracy and applicability of the new model were verified by comparing the field monitoring data and the calculation results of existing models. In addition, based on the new model, the effect of the re-tension of the anchor cable at different time nodes was analyzed, and the later compensation time of anchor cable prestress was discussed. The research shows that: the accuracy of the new model is higher after considering the effect of the frame beam, the new model can not only calculate the loss of prestress of anchor cable, but also accurately predict the time when the prestress of anchor cable reaches the stable stage. The ideal effect of prestress compensation can be achieved when the anchor cable is re-tensioned at each time point after 20 days of the construction completed. The original prestress loss of the anchor cable is different, and the re-tension effect is also different, the greater the loss of the original prestress of the anchor cable, the more obvious the prestress compensation effect during the re-tension.https://www.mdpi.com/2227-7390/9/10/1094prestress of anchor cablecreep model of rock massprestress loss modelprestress compensationprestress loss |
| spellingShingle | Keyou Shi Xiaoping Wu Yurong Tian Xiaotian Xie Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model Mathematics prestress of anchor cable creep model of rock mass prestress loss model prestress compensation prestress loss |
| title | Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model |
| title_full | Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model |
| title_fullStr | Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model |
| title_full_unstemmed | Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model |
| title_short | Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model |
| title_sort | analysis of re tensioning time of anchor cable based on new prestress loss model |
| topic | prestress of anchor cable creep model of rock mass prestress loss model prestress compensation prestress loss |
| url | https://www.mdpi.com/2227-7390/9/10/1094 |
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